-qranson



(No Model.) 2 Sheets-Sheet 1.v

y G. s. CHANSON. MACHINE FOR HULLING AND GRANULATING GRAIN. No. 288,212.Patented Aug. 14, 1888.

OQOCOODOOOOOQ 00000000 000D ooooooo 500000 00.

o. O 0 OOO ooo 00Go 9m t G e h S uw e e h s 2 N 0 S N A R G S. G

(No Model.)

` MACHINE FOR HULLING AND GRANULATING GRAIN. No. 283,212. Patented Aug.14, 188s.

(3 V :j "LA" r 7lfzfrzejs'ep. 5.77

PETERS, Pham Lllllognp Y Wishm un. D C

, tional elevation of aimachine providedwith UNITED h STATES PATENTGarros.

GiLns s. oaANsoN, or YsitvnaGREEK, Nnw vonk.

.l ivlAoHlNE FQRHULLING AND VGRANUI .ATJNG GRAIN..

SPECIFICATION forming part of Letters Patent No. 283,212, dated August14, 1883.

` Application fledMaroh 31, 1893.` (.No model.) n

To al?, whom t may concern: Beit known that I, GrLns S. CRnNsoN, ofSilver Creek, in the county of Chautauqua and State of New York, haveinvented new and use- `through the space between the corrugated faces ofthe plates. In machines of this class the comminution is liable to becarried too far, so that the shucks, hulls, or bran are out or reducedtoo finely, thereby causing the production of iine specks, which becomecommingled with the iinely-reduced particles of the hour-producingportions of the grain, from which it is very difficult to separate thespecks afterward by bolting or purifying. h

The object of the first part of my invention i is to obviate thisdifiiculty and to construct the hulling and granulating mechanism insuch manner that the fragments of the iiour-pro ducing portions of thekernels which have been reducedto the `proper degree of fineness aredischarged from they hulling or reducing mechanism, and therebyprevented from being too finely reduced, while the coarse particles arefurther reduced.

` The second part of my invention relates to an improvement wherebyV thevaluable particles of the product which are accidentally carried away bythe separating air-current, together with the fragments of bran, shucks,or hulls, are recovered from said air-current and separated from theaccompanying offal.

My invention consists to these ends ofthe h improvements which will behereinafter fully described, and pointed'out in the claims.

\ 1 In `the accompanying drawings, consisting of two sheets, Figure 1 isa longitudinal sec- Fig. 2 is a horizontal section inline fr x ofFig. 1. Fig. 3 is a vertical section in line y y, Fig. l. Fig. i is anelevation of the front end of the machine.` Figuis a perspective view ofthe upper corrugated my improvements.

' sired.'

plate inverted. Fig. -bis a longitudinal section of the lower corrugatedplate and its sup! porting-frame, the two` parts being slightlyseparated. Fig. 7l is a cross-section of the plates and supporting partson an enlarged scale. Fig. `8 is a similar view, showing a modifiedconstruction of the mechanism wherebythe upper plate is supported andadjusted.`

Like letters of reference refer to like parts in the several n gures.

A represents the stationary frame o f the machine, and A the feed-hoppersupported on i The plate B may be constructed of steel,chilledcast-iron, glass, or other suitable material, and is preferablymade detachable from its supporting frame or plate B, so that it can bereversed end for end on the same, when de- The supporting plate or frameB is provided with laterallyextending shoes b, which are provided withV-shaped grooves, by means of which they slide on rails D D. The" latterare secured in an inclinedposition to the inner sides of the frame A,and made adjustable on the same by adjusting-screws d, which work inthreaded openingsin the rails D and pass through lugs df, secured to theframe A. rIhe screws d are secured in the de-y sired position byjam-nuts d2.

In Fig. 8, da represents a Aspiral or other suitable spring, which isinterposed between the lower jam-nut, d, and the rail D, and whichpermits the latter to yield when astone .or other hard substance ofunusual size passes between the plates. i Vhen` the spring is used, thelower end of the adjusting-screw Vpasses loosely through the rail,andthe latter steel, Vor they may be constructed'in separate `pieces andsecured Yseparately to the supporting-frame F, so thatv each strip canbe removed or reversed when required. The supportingframe F of the lowerplate is provided with laterally-extending vshoes or guid es f,construct- IOO 2 esame ed like the shoes b'of the upper plate, andrunning on rails G, arranged below the rails D, and secured to the frameA by bolts g, passing through elongated holes g', formed in lugs orfianges on said rails. The supporting-frame F of the lower plate isprovided on its upper side with raised longitudinal ribs or flanges fwhich fit snugly against both sides of the corrugated plate B andprevent the escape of the material from between the plates in a lateraldirection.

h represents openings formed in the supporting-plate F, underneat-h theperforated portions c of the plate C, for the escape' of the iin'ematerial which passes through the perforations.

i represents a connectingrod,which extends from the ppper end of theplate B or its supporting-plate B to'an eccentric or crank, fZ, formedon or secured to the inner end of a horizontal shaft, 412, which ismounted in bearings zi, and whereby a reciprqcating motion is impartedto the plate B. The lower plate, C, receives a similar motion by meansof a connecting-rod,-j, an eccentric or crank, j, and a shaft, j`,mounted in bearings j. The upper plate, B, is preferably reciprocatedwith less speed than the lower plate, C, so as to produce a differentialmotion between the ribs of the plates; or the upper plate may be madestationary, if desired, f

J represents a perforated plate, arranged at f the head of the lowerplate, C, for separating the fine dust from the grain before it entersbetween the reducing-surfaces; and J is a hopper whereby the separateddust is discharged,

and which may be secured to the plate C orl any other suitable partofthe machine.

corrugated surfaces of the plates.

' upper plateA and permit the free movement of K represents afeed-hopper, which is secured to t-he upper end of the frame F of thelower v.plate,`so as to receive the material from the hopper Aanddeliver the same between the The hopper K is divided centrally in itslower portion, so as to straddle the connecting-rod Z of the the latterthrough the hopper.

L represents a shaking-shoe arranged under' i neath the plates B and C,and provided with separating sieves or screens Z Z', whereby thematerial is sepa-rated according to neness. The finest material-such asflour-passes through both sieves Z Z and falls on the inclined bottom ZZof the shoe, from which it escapes by a spout, Z3. The coarsermaterial-such as fragments of the meats or flour-producing innerportions of tl1ekernels-passes through the upper screen, Z, but notthrough the lower screen,

Ythe tail end of the screen Z.

Z', and escapes over the tail end of the screen Z into a spout, Z, andthe coarsest materialsuch as hulls, shucks, or bran-escapes over Theshoe L is N represents an ascending airspout, which receives thematerial from the spout Z*, and connects at its upper end with the eye aof a fan, O, the spout N being provided with a slide, fnf, in awell-known manner, to regulate the force and volume of the air-current.

p represents the discharge or blast spout of the fan, which extendsdownwardlyfrom the fan-case, and terminates at a short distance above anauxiliary screen, Q, which is secure d to the rear portion of the shoe Labove the screen Z. rlhe blast-spoutp gradually enlarges laterallytoward its lower end, wherebythe force ofthe blast is correspondinglyreduced.

q represents a tight plate, which is arranged directly underneath theblast -spout at the head of the screen Q, and which receives the impactof the blast and of the material which is discharged with the blast.rlhe upper end of the plate q is turned over or curved back-V wardly toconfine the blast and direct it toward the tail end of the screen Q, andthe latter is provided with raised side pieces, q', which also confinethc blast and prevent any of the mateof hulls or bran a certain quantityof finer fragments of meats, and these fragments are further reduced bythe beating action of `the fan-blades, while the tougher fragments ofbran are not affected thereby. The blast escaping from the fan deliversthis materia-l upon the tight plate q, from which it passes to the sieveQ. The latter effects a separation ofthe fine portions of theour-producing particles from the bran and thc hulls, the fine particlespassing successively through the sieves Z Z, while the hulls and branescape over the tail end of the sieve Q. Im this manner all of thevaluable portions of the material, which wouldl otherwise be carried offby the air-blast with the offal, are separated from the offal and addedto the flour-producing portion of the product.

The ribs or corrugations of the plates B and C should be constructedwith 4reference to the particular kind of work for which they areintended. If it is desired to produce a cutting action, the ribs orcorrugations should be angular and arranged to work with their abruptsides toward each other 5 and if it is` derial from being blown over thesides of the IOO IIO

sired `to produce a non-cutting action, this is readily accomplished byreversing one of the plates on its supporting-frame, so as to cause theribs to work with their inclined sides toward each other, or byemployinground ribs or corrugations. When the corrugated portions e ofthe lower plate are made separate v from the perforated portions ethereof, the

i arranged diagonally, or more or less inclined,

if preferred.

The grain which is fed between the plates Bland C works toward the lowerend of the plates by gravity, and is by the action of the plates brokenup in such a manner as to sever P lo.

the outer tough coverings or hulls from the inner starchy orflour-producingportions of the kernels. As the starchy portions of thegrain are more friable than the tough outer coverings, the innerportions are more quickly broken up, and as soon asthey have beenreduced to the proper degree of iineness they escap'e through theperforations of 'the lower plate, and are no longer subjected tothe redncing action of the plates. These `portions ofthe grain are thereforeprevented from being pulverized too finely, and as a considerableportion of the material escapes through the perforated sections c beforeit reaches the ends of the plates, the latter are relieved from a 3ogreat deal of unnecessarywork. The material passing through theperforated sections falls upon the upper portion ofthe screen Z, and isimmediately separated according to fiiieness, the flour and V.fineparticles passing through the screens Z l, while the coarse particles ormeats pass over the tail of the screen l. The material escaping over thelower ends of the plates B and C falls upon the lower portion of thescreen Z, and is separated in a similar manner, the shucks, hulls, orbran escaping over the tail end of the sieve, as before stated.

.. My improved machine is especially adapted for hulling and granulatingbuckwheat; but it kmay alsobe employed for treating wheat and l. In ahulling or granulating machine,'the combination, witha plate, `B, havingtrans-4 verse grinding ribs, grooves, or corrugations, of aplate, C,provided with transverse ribbed, grooved, or corrugatedgrinding-sections and intermediate transverse perforated `sections, e7,and mechanism whereby a reciprocating movement is imparted to thegrindingsurfaces, substantially as set forth. i p

2. In a hulling or granulating machine, the

removably to supporting arms or plates, and adapted to be reversed Aonthe same end for combination of two reciprocating plates secu red end,to change the character of the action of the plates, substantially asset forth.

3.' rlhe combination, with a fan, O, a suction-spout, N, adapted toreceive the material to be separated, and a blast-spout, p, of aplate,Q, arranged opposite the mouth of the disehargefspout, and adapted tocollect the ma-A terial which is suspended in the air-currentpropelled'by the fan, substantially as set forth.

4. The combination,with a fan,O, a suction spout, N, and blast-spout p,of a plate, q, and screen Q, whereby the material contained in the-aircurrent delivered by the fan is collected and separated,substantially as set forth.

5. The combination,with a shaking-shoe, L, having a discharge-spout, Z,and a plate, q, and screen Q, of asuction-spout, N, fan 0and blast-spoutp, terminating opposite the plate q, substantially as set forth. Y

6. The combinatio11,with the fan O, suction- 'spout N, and blast-spoutp, of the plate q and screen Q, provided with raised head and sidepieces, substantially as set forth.

7. The combination, with the lower plate,

C, of a perforated plate, J, arranged at the head of the plate, todischarge the dust before the grain enters between the reducing-plates,substantially as set forth.

8. The combination, with the blast-spout of a fan, of a collecting plateor pan placedopposite the end of the discharge-spout, and hav ing araised edge, wherebythe heavy material suspended in the air-current iscollected, substantially as set forth.

' G.-s. cRANsoN.

Vitnesses:

JN0. J. BONNER, CHA-s. F. Gnvnn.

